Magnetic -filter fob fluid lines



July l5, 1952 .1:1.. cooNEY MAGNETIC FILTER FOR FLUID LINES Filed June 4, 1946 Fiql if; EL

LUKE

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. INP 'EN TOR. John L.. 600m:

www k Patented July 15,` 1952 ATENT oFFlCE MAGNETICFILTER FOR FLUID MNES -A John L. Cooney, Erie, Pa.

'f Appli This inventionrelates generally to filters in a fluid line, and it relates more particularly to magnetic filters in a -uid line.

yFilters have been provided in a fiuidline which comprised a screen member but it hasfbeenfound that minute metal particles often pass through the screen, Whichdamages nozzles 'and the like, through lwhich the iluid passes. Magnets have 'been provided on-the-outside of a straight iiuid line to'attract metal particles,r but these have not `been practical, inasmuch as the pressure of the fluid carried much-ofthe metal particles past the magnets andscavenging of the metal particles from .the iiuid` line has been y.oliilicult .andiimpractical Y it is,. accordingly, an object of my invention to overcome the above andother defects in filters for a nuid line, and it is more particularly an object'f of my invention to .provide a magnetic lter. or separator for .solid matter in fluid lines which is simple in construct-ion,- economical in cost, economical in manufacture, eiicient in operation, easy to install and'easy to clean.

Another vobject of .my invention is toprovide a magnetic lil-ter for a fluid line which permits a maximum now of fluid through the line.

Another object of my invention is to provide a magnet which may be snapped on and off of a tting in a fluid line.

Another object of my invention is to provide a novel screen in a fluid line, in combination with a magnet, disposed externally of the fluid line.

Other objects of my invention will become evident from the following detailed description, taken in conjunction with the accompanying drawings, in which Fig. 1 is a side elevational view of my novel magnetic member disposed on a tting.

Fig. 2 is an end elevational View showing my novel magnetic member disposed on a tting.

Fig. 3 is a vertical sectional View of my novel magnetic lter assembly.

Fig. 4 is an exploded view of my novel magnetic lter assembly.

Referring now to the drawings, Figs. l toe, inclusive, show fltting I for disposal in a fluid line, having threaded ends 2 and 3 and a cylindrical outer surface 5U with oppositely disposed spherical shaped recesses 5I. A U-shaped magnet, comprising a connecting cross-piece 4 and depending arcuate shaped legs 5 and 6, is adapted to be disposed over the outer cylindrical surface 5t of the tting I. The depending legs 5 and 6 have threaded, vertically extending apertures 7 and 8 for threadably engaging screw bolts 9 and cadmium-4,inaserialnra'zgise i -51`.'c1aim. (Crain-1.5)

III, for connectingv the-`crossmember -4 and `the legs 5-and 1S.' The inner portionsflZ andIS of the legs 5 and vE are arcuate-in shape, conforming with the contour of the outer cylindricalsurface Eil of the tting I. The legs 5 and 6 have lateral- 1y extending recesses I4 ,and I5 for'receiving spring and ball `mer'nbers 1.8, Il, l8r-and I9.' The ball members i6 'and I8 engage the'recesses 5I in the tting I to secure the U-shap'ed magnet on the tting I. The frictional engagement of the inner surfaces I2 and I3 of legs 5 and 6 is sufcient to secure the magnet onthe Vfitting -I. It `willbe'evident vthat any `suitable means may be provided to secure the magnet -on the tting I, and my magneticmembermay take different forms and shapeswithout departingv from -the spirit or" Vmy invention.I I I 'I A screen2lI is `disposedvertically in ltheliltting I, as shown `in Fig. 3,-with the 'bottom end thereof seated in a `count'ersunlcportion 22 cfa screw plug 23 `having-aflangedportion 2-4 anda wrench engaging 'portion "25` which threadably engages section 5310i 'the' fittingsy :I 1 The pper 4end Aof the screen 2l -seat"s`\ir'-1a -couhter-sunlkportion 2l formed in the horizontal apertured wall section 5d of the fitting I A passage 28 above the screen 2l and the apertured Wall section 54 carries fluid to the end 2 of the tting I. Except'for the magnetic member, all parts of my novel magnetic lter assembly are preferably non-magnetic. The ow of fluid in my novel magnetic lter assembly isfrom the end 3 of the fitting I laterally through the screen 2| and then upwardly to the passage 28 and out through the end 2 cf the tting I. The direction of flow is opposite to the normal direction of ow, in order` that metal particles mayl have `suiiicient wall area surrounding the screen 2l, wherein they may be held by magnetic attraction of the magnetic member externally of the tting I. A vertical wall 55 is integral with the horizontal wall 54` and is spaced from the screen 2I.

In operation, my novel magnetic filter assembly is assembled as shown in Fig. 3 with the U-shaped magnetic member snapped over the outer cylinn drical surface of the tting I. The flow of uid is from end 3 of the fitting I laterally through the screen 2l and then upwardly to Metal particles cling to the wall 55 the outer cylindrical surface 50 of the fitting l and the screw plug member 22 is disengaged, wherein the metal particles clinging to the inner wall 55 of the iitting I will fall through the opening in the lateral section 53 of the fitting I. 5

A cloth, brush, or any other suitable means may be utilized for cleaning the screen 2| and the inner wall 54 of the iitting I.

It will be evident from the foregoing that I have provided a novel magnetic iilter, wherein the magnetic member is easily assembled and disassembled, wherein the magnetic member is disposed in its most advantageous position in regard to a uid line, wherein a screen is disposed internally of a iiuid line in cooperation with an external magnetic member, and wherein a suicient area is provided in the fluid line, out of direct contact with the iiowing fluid, to hold a maximum amount of metallic particles in suspension in the iiuid line, diie to the attraction of the magnetic member disposed externally thereof.

I have further provided anovel external surface for a tting to permit maximum contact with the arcuate surfaces of the legs of a U- shaped magnet. l

Various changes may be made in the speciiic(J embodiment of my invention without departing from the spirit thereof. or from the scope of the appended claim.

What I claim is: 90

A magnetic iilter for a uid line comprising a4 fluid line, a vertically disposed fitting in said fluid line having a downwardly inclined inlet passageway and an outlet passageway, the opposite sides of said tting parallel to the axis thereof;

having oppositely disposed, parallel fiat sides with opposed recesses therein, a vertically extending inner wall in said fitting intermediate said inlet passageway and said outlet passageway and a horizontally extending inner wall portion with a countersunk central aperture, said horizontal wall portion being spaced from the outer side of said tting to deiine a horizontally extending passagewayfor fluid, a vertically extending cylindrical screen having the upper end` 4 thereof seated in the countersunk portion of said horizontal wall member disposed in the path of said downwardly inclined inlet passageway, a removable screw plug on said fitting having a well with a countersunk portion on the upper end thereof for seating the bottom end of said cylindrical screen member, said screen being spaced from said vertically extending wall portion of said fitting, a U-shaped magnet having parallel inner sides corresponding to the parallel outer sides of said iitting disposed externally of said fitting with the parallel inner sides thereof disposed parallel to said screen whereby the magnetic lines of force between the pole faces thereof pass transversely of the lower portion of said screen and the flow of iiuid. and spring urged camming members carried by said U-shaped magnet engageable with the recesses in the parallel outer sides of said fitting for detachably securing said magnet to the fiat sides of said iitting.

JOHN L. COONEY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 263,131 Edison Aug. 22, 1882 542,911 Whitacre, et al July 16, 1895 675,711 Brophy June 4, 1901 755,325 Soutar Mar. 22, 1904 '1,148,990 Rogers Aug. 3, 1915 1,251,601 Weiwoda Jan. l, 1918 1,602,935 Rasey Oct. 12, 1926 1,606,356 Fisher Nov. 9, 1926 1,849,582 Sundborg Mar. 15, 1932 2,348,380 Graham May 9, 1944 2,358,612 Acker Sept. 19, 1944 2,399,994 Feagin May 7, 1946 FOREIGN PATENTS Number Country Date 478,770 Germany July 2, 1929 557,626 Great `Britain Nov. 29, 1943 

